"We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on."
"I learned very early the difference between knowing the name of something and knowing something."
"Science is like sex: sometimes something useful comes out, but that is not the reason we are doing it."
"Physics isn't the most important thing. Love is."
"Science is what we have learned about how to keep from fooling ourselves."
"Nobody ever figures out what life is all about, and it doesn't matter. Explore the world. Nearly everything is really interesting if you go into it deeply enough."